June 2006 - Zope - Zope lists

Error Value: Can't pickle objects in acquisition wrappers
by jose carlos 21 Jun '06

21 Jun '06

Hi, I have a product with a container class to save a list of groups and others objects.. The container class is: class StorageAdapter(ObjectManager, BasicUserFolder): .... .... this class have a function to add groups like that: def addGroup(self, id="", nombre="", REQUEST =None): """to add a new group""" #create a group grupo = Group(id, nombre) #add a group to container try: self._objects=self._objects+ ({'id':id,'meta_type':Group.meta_type},) self._setOb(id,grupo) object=self._getOb(id) self._p_changed = 1 except: return MessageDialog( title ='error', message='error al añadir grupo', ) if REQUEST is not None: REQUEST['RESPONSE'].redirect(self.absolute_url()+'/gestGroupForm') The class group is simple like this. class Group(ObjectManager, BasicUserFolder): """Class Group""" meta_type = 'Group' title ='Grupo' def __init__(self, id, nombre): _debug("init del Group") self.id=id self.nombre=nombre #acl to control this group f=AclUserFolder() _debug("creo el acl del Group") try: self._setObject('acl_users', f) except: return MessageDialog( title ='error Acl Existente', message='Este Group ya contiene un ACL', ) self.__allow_groups__=self.acl_users ... ... ... the function addGroup is called from a dtml and the groups are added ok and later I can view the result perfectly in dtml, but i want to add a new attribute to class group then in the method __init__ i have add the sentence: self.contacts=[] this is the only change and then i obtain this error: 2006-05-22T16:29:14 ERROR Zope.SiteErrorLog http://localhost:8080/prueba/ST/addGroup Traceback (most recent call last): File "/usr/lib/zope/lib/python/ZPublisher/Publish.py", line 119, in publish transactions_manager.commit() File "/usr/lib/zope/lib/python/Zope2/App/startup.py", line 234, in commit transaction.commit() File "/usr/lib/zope/lib/python/transaction/_manager.py", line 84, in commit self.get().commit(sub) File "/usr/lib/zope/lib/python/transaction/_transaction.py", line 381, in commit self._saveCommitishError() # This raises! File "/usr/lib/zope/lib/python/transaction/_transaction.py", line 379, in commit self._commitResources() File "/usr/lib/zope/lib/python/transaction/_transaction.py", line 424, in _commitResources rm.commit(self) File "/usr/lib/zope/lib/python/ZODB/Connection.py", line 462, in commit self._commit(transaction) File "/usr/lib/zope/lib/python/ZODB/Connection.py", line 503, in _commit self._store_objects(ObjectWriter(obj), transaction) File "/usr/lib/zope/lib/python/ZODB/Connection.py", line 525, in _store_objects p = writer.serialize(obj) # This calls __getstate__ of obj File "/usr/lib/zope/lib/python/ZODB/serialize.py", line 330, in serialize return self._dump(meta, obj.__getstate__()) TypeError: Can't pickle objects in acquisition wrappers. i don't known where can be my error, if someone can help me. thank jose carlos

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Re: [Zope] questions on multilingual sites
by Chris Withers 21 Jun '06

21 Jun '06

John, please keep posts on the list... John Schinnerer wrote: > If I'm going to add in internationalization at some point, and do it > using zope 3 stuff via five - what is the minimum, and what is the > optimum, zope 2.x version to upgrade to? Minimum, I guess 2.8. Optimum? 2.11? ;-) I'm trying with 2.9, so I guess we'll see... > I need to upgrade anyhow to support newer plone so I'd like to have it > all work together... Don't mention the "p" word, you'll set me off, and I'm trying ever so hard not to be rude about it ;-) cheers, Chris -- Simplistix - Content Management, Zope & Python Consulting - http://www.simplistix.co.uk

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Transaction rollback
by Luiz Fernando B. Ribeiro 21 Jun '06

21 Jun '06

I need to return an error page with instructions after verifying a request but I need to do a rollback. How can I call a full rollback, like when using raise(), inside a python script and redirect to an error page. I found many posts about get_transaction().rollback() but it is deprecated in Zope 2.9. What is the modern way of doing this? Thanks in advance. -- Luiz Fernando B. Ribeiro Engenho Soluções para a Internet

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RE: [Zope] Nested dtml tags
by Jonathan Bowlas 20 Jun '06

20 Jun '06

Hmm, this doesn't appear to work. Let me explain what I'm trying to do. I have a Z SQL Method called selectmoduleinfoMethod that contains the SQL: SELECT * FROM RECMGR_EL_MODULE_Query WHERE MODCODE = <dtml-sqlvar MODCODE type="string"> This recordset is returned to a dtml form to populate the fields ready for editing. One of the database table entries returned from this query is the value of MODLEVEL, this modlevel can be one of seven choices that appear in a select list. However I'd like the one returned from the database to appear as selected in the form for editing. As far as I can see the example you gave me does not retrieve the value of MODLEVEL from the returned SQL recordset it only checks for its existence and consequently cannot test for the conditions. Any Ideas how I may resolve this? Jon -----Original Message----- From: Jaroslav Lukesh [mailto:lukesh@seznam.cz] Sent: 20 June 2006 12:29 To: me(a)jonbowlas.com; zope(a)zope.org Subject: RE: [Zope] Nested dtml tags > bounces+lsh=wo.cz(a)zope.org] On Behalf Of Jonathan Bowlas > How can I do this with dtml? > > <select name="MODLEVEL" size="1"> > <dtml-if expr="<dtml-var name="MODLEVEL"> == 1"> #I need an > alternative to this. > <option value="1" selected="selected">1</option> > <option value="2"><2</option> > Etc, etc. <dtml-if MODLEVEL> <select name="MODLEVEL:int" size="1"> <option value="1" <dtml-if expr="MODLEVEL == 1">SELECTED</dtml-if> >1</option> <option value="2" <dtml-if expr="MODLEVEL == 2">SELECTED</dtml-if> >2</option> Etc, etc. </dtml-if> Regards, JL.

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Performance hit for DeadlockDebugger?
by Chris Withers 20 Jun '06

20 Jun '06

Hi All, Is there any performance hit for having DeadlockDebugger installed and enabled all the time on a production zope instance? cheers, Chris -- Simplistix - Content Management, Zope & Python Consulting - http://www.simplistix.co.uk

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Nested dtml tags
by Jonathan Bowlas 20 Jun '06

20 Jun '06

Hi All, How can I do this with dtml? <select name="MODLEVEL" size="1"> <dtml-if expr="<dtml-var name="MODLEVEL"> == 1"> #I need an alternative to this. <option value="1" selected="selected">1</option> <option value="2"><2</option> Etc, etc. Hope someone can help. Jon

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dictionary from sequence-item
by Alric Aneron 19 Jun '06

19 Jun '06

Hello, I am looping through a list of dictionary objects using <dtml-in... and within the dtml-in body I have: <dtml-var "_.getitem('sequence-item')['titled']" missing="none"> Some of the dictionaries in the list don't have 'titled' key so it should replace it with the word "none", but it gives me an error Error Type: KeyError Error Value: 'titled' I don't understand. Another option is that I can use <dtml-if "_.getitem('sequence-item').has_key('titled')"> but it doesn't work, says has_key is an unknown attribute. This is the stupidest thing ever! it's a dictionary object! I try to typecast it using the dict(_.getitem('sequence-item')).has_key('titled') it gives me an error saying it can't typecast, but I am 100% sure it's a dictionary object because I can access it easily _.getitem('sequence-item')['titled'] for those that have that key. Any idea how I can check if the titled key is in the dictionary for the current list item? Thanks in advance guys! --------------------------------- Yahoo! Messenger with Voice. PC-to-Phone calls for ridiculously low rates.

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SSL Redirect for CookieCrumbler
by Josef Meile 19 Jun '06

19 Jun '06

Dear Zopers I need to redirect all my http requests to the login_form of the CookieCrumble to https, so, I wrote this rule in apache: RewriteRule ^/login/login_form(.*) https://server/login/login_form$1 [NE,L] It authenticates me through ssl, but then it cames back to http. I saw that the problem is that the came_from variable refers to the original http request; something like this: https://server/login/login_form?came_from=http%3A//server/page&retry=&disabl e_cookie_login__=1 Is there any way of writing something like this in apache? RewriteRule ^/login/login_form?came_from=http%3A(.*) https://server/login/login_form?came_from=https%3A$1 [NE,L] It is not working for me :-(. I even tried escaping the '%' with a backslash like this: RewriteRule ^/login/login_form?came_from=http\%3A(.*) https://server/login/login_form?came_from=https%3A$1 [NE,L] But Apache doesn't match the rule. What's wrong with that? Anyway, another thing that bothers me about the last approach is that I even don't know if there is always a "came_from" variable. Is this always the case? Is there any other way of achieving this? Regards Josef

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questions on multilingual sites
by John Schinnerer 19 Jun '06

19 Jun '06

Aloha, I'm currently doing a custom small business site that might also want to be in French further down the road. I've never used the internationalization aspects of zope yet...so a few basic questions: Can additional language support be added in later, or is it necessary to build it all in from the start (even if not used yet)? What are the basic docs/tutorials/howtos I should look at to start understanding how zope language support works and how to best apply/use it? thanks for any assistance, John S. -- John Schinnerer - MA, Whole Systems Design ------------------------------------------ - Eco-Living - Whole Systems Design Services People - Place - Learning - Integration john(a)eco-living.net http://eco-living.net

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Re: [Zope] data type
by George 19 Jun '06

19 Jun '06

On 6/19/06, Andreas Jung <lists(a)zopyx.com> wrote: > > > > --On 19. Juni 2006 15:11:42 +0300 George <tesseris(a)gmail.com> wrote: > > > How can I find a variable's data type in dtml? > > > > Sorry if it's sth obvious, thx in advance! > > > There is only the same_type() method available. Perhaps instance() but > you can't use the type() method of Python for security reasons. > The Zope Book should explain the usage of same_type(). > > -aj OK, perfect! I have done it before, but bad memory :) Thx for your quick response!

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